インキ転移に関する研究 : ローラ材質とインキ含水率の影響

概要

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Printing ink is a suspension of finely divided pigments dispersed in a vehicle, and then it behaves in peculiar ways rheologically. Ink transfer during printing is the most basic subject among printabilities. Many studies on ink transfer were presented, and were mainly on ink transfer onto paper from printing plate. 0n the other hand, printing is diversified and therefore the efficiency of printing machines have been needed. 0ne of these technologies is automatic control of inking system. ln order to appropriate a simulation of ink transfer on inking system, we experirnented on the transfer between rollers. The results of this experiment using inking apparatus of IGT printability tester. rollers of various surface materials-phenol resin, nylon resin, copper, chromium and aluminium- and inks of different water content, were as follows : 1. Ink transfer ratio decreases in proportion as increase of water content in ink. 2. There were not eviden differences of ink transfer between roller surface materials. 3. Some differences between inks were observed. lt seems to depend on a certain flow characteristic.
東京工芸大学の論文